Three-horse equalizer.



G. A. GRUM.

THREE HORSE 'EQUALIZERQ APPLIoA'rIoN FILED APR. 2. 1907,

905,990. y Patented Dec. 8,190@

mmlllllmmmnm1 www r y l GEORGE A. CRUM, OF LOS ANGELES, CALIFORNIA.

THREE-HORSE EQUALIZER.

Specification of Letters Patent.

Patented Dec. 8, 1908.

Application filed April 2, 1907. Serial N o. 365,974.

To all 'whom it may concern.'

Be it known that I, GEORGE A. ORUM, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Three-HorseEqualizers, of which the following is a specification.

My invention relates to a form of draft equalizer which is particularlyadapted to equalize the pull of three horses; and it is an ob'ectthereof to produce an equalizer which will allow of two ofthe horsesbeing placed in their usual positions on each side of the wagon tongue,so that they may be used for backing and turning just as in a two horseteam.

A further object is to provide an equalizer which may be adjusted to theindividual pulling power of the horses.

A further obj ect is to provide an equalizer which may be ut onto andremoved from the tongue quiclly, and which will not interfere in anyway, when removed, with the ordinary two horse arrangement.

I accomplish these objects by means of the device described herein andillustrated in the accompanying drawings, in which Figure 1- is a planview of my device attached to a wagon tongue. Fig. 2w is a sideelevation ofthe same, one of the wheels being removed. Fig. 3- is asection on line 3-3 of Fig. 1.

In the drawings 10 designates an ordinary wagon tongue attached in theusual manner to an axle 11 carrying wheels 12. A bolt hole 13 is shownin Fig. 3 being the hole by means of which the ordinaryv double tree isattached. In my device I attach e ualizer tree 14 to the tongue bypassing its olt 15 through this hole. Mounted immediately in the rear ofequalizer tree 14 is an auxiliary equalizer tree 16 pivotally secured bybolt 17 between straps 18 and 19. The ends of the auxiliary tree areunequal in length, one end The long l being twice as long as the other.end 1s connected to the long end of equalizer tree 14 by straps 20.Holes 21 are provided so that the point of attachment of straps 20,which are adjustable as to length, may be varied by moving bolt 21. Tothe extreme outer end of equalizer tree 14 is attached the swingle tree22. The short end of auxiliary treey 16 is pivotally connected to doubletree 23 b straps 24. Double tree 23 carries the usua s Wingle tree26.The short end of equal- It will be seen that the single horse pullsthrough two connections upon the double tree and that the two horsespull through two connections upon the swingle tree. The arms of lever 16are in the proportion 2 to 1, while the arms of lever 14 are in aproportion somel.

what more than 2 to 1. By this arrangement I design to give the singlehorse a small advantage, if anything, over the pair of horses, but theextra length of the single horse end of lever 14 will, in most cases,about make up for the diagonal pull which' he has on the long end oflever 16. By providin two sets of straps, 24 and 27, the center of t edouble tree is transversely immovable, so that the pair of horses willbe held in a central position. When it is desired to use only two horsesthe ordinary double tree may be attached to the tongue by means ol' bolthole 13.

It will be observed that I have rovided a three horse equalizer which issnnple and eflicient and which may be attached to a wagon tongue with aminimum amount of trouble, and which will not hinder the ordinaryworking of the wagon by two horses.

Having described my invention what I claim as new and desire to secureby Letters Patent is In a three horse equalizer, a wagon tongue, adouble tree centrally' disposed over said wagon tongue, a swingle treeiiexibly connected to each end of said double tree, a lever pivoted tosaid wagon tongue and comprising a long arm and a short arm, a secondlever pivoted to the wagon tongue in the rear of the irst named lever,said lever being considerably shorter than the rst named lever and saidsecond lever also comprising a short arm and a lon arm, a swingle treeflexibly connected to t e outer end of the long arm of the rst namedlever, a link pivoted at one end to the short arm of the first namedlever, and at its other end to the center of the double tree, a secondlink pivoted at one end to the short arm of the second lever and at itsother end to the center of the double tree and an adjustable memberwhich connects the outer end of the long arm of the second lever withthe long arm of the first named lever intermediate the outer end and theivotal point of the latter an elongated. strap ocated upon the upperface of the tongue and an integral 1- In Witness that I claim theforegoing I have short strap carried by the first named strap f hereuntosubscribed my name this 16th day and spaced therefrom, said second leverbel of March, 1907.

ing pvoted between said straps, the pivotal GEORGE A. CRUM. means of therst named lever comprising a bolt which passes through both the tongueand the elongated strap.

Witnesses TRIMBLE BARKELEW, EDMUND A. STRAUSE.

